Roofing



Jan 6, 1931. H G GOSLlN 1,787,622

RooFING Filed March 28 1929 Patented Jan. e, 192.1r

rATENT ori-'ica e. enna, or nenn, ca momen;

MOG

.Application med March 23, 1229. Serial Ne. 350,465..

My invention relates to rooting and in- \actly twice cludes among its objects and advantages the development of a shingle that can be laid with the maximum coverage consistent with ar predetermined head lap and side lap either as a lock shingle or as an ordinary shingle, and produce an attractive design in both inl4 stances. ln the accompanying drawings, Fig. 1 is a diagram indicating how shingles 1c according to the invention can be cut from a continuous strip of material without any waste.

Fig. 2 is a plan view of a portion oii a roof with the shingles interlocking.

Fig. 3 is a plan view of a portion of a roo in which the same shingles are laid without interlocking and with lesshead lap to make a two-thickness roof.

ln the embodimentof the invention se- 20 lected for illustration each shingle comprises a substantial rectangular body of materially greater height than width. The sides of the body are offset at 12 midway between,`

the top and the bottom of the shingle. At the 95 lower end of the shingle the sides flare "outwardly to produce locking tabs 14: and the method of cutting requires a corresponding indentation at 16 at the upper corners of the shin le.

Shing es according to be laid according to Fi 2 in which each shingle has its locking ta s 14 hooked under the offsets 12 of two shingles in the course below. Thus the shingle 18 has tabs at 20 underlying two shingles in the course below. Above the level of the tabs 20 the body of the shingle 18 overlies the upper portions of the shingles in the course below asat 22. This overlap continues to the extreme top of the underlying shingle at the point 24, but it is further supplemented from the point 26 up by the shingles'28 in the course above which 3e the invention may lap'over the upper portion of the shingle 18.y

Thus there is always a side lap equalto that at 22, and before this .is cutdown by the i'ecess at 16 in the underlying shingle the new side lap for the next course beginnin at the point 26 fully protects lthe vertical ]oint.

'By placing the offset 12 at the middle of the shingle, I secure a head lap at 30 lequal to excompleted `than two the height of the locking tab 14. This lap is greater than the side lap, a feature which is considered necessary in practical service to prevent wind from beating rain and moisture up under the lower edges of the shingles.

When the shingles are laid the other end up as in Fig. 3, they may be spaced apart laterally in each course by a spacing identical with that of Fig. 2 and the vertical spacing may be indentical with that of Fig. 2 and in which case a coverage identical with that of Fig. 2 will be obtained. However, it is also possible to decrease the lateral spacing and the vertical spacing to a point such that no point on the roof is covered by less than two thicknesses of material. This is indicated in Fig. 3 where the upper end of shingle 32 extends up to exactly the same level as the lower end of shingle 34. Where the conditions ot service or the requirements of durability call for a two-thickness roof, it is customary to increasethe side lap to ability in that respect increased in proportion to the change in the head lap. When this is done, as indicated'in Fig. 3, the exposed area of the shingle is broken up from a simple block-T shape by the notches at 16.

lt will be evident that the saine t e of lf-shape with notched corners will e lcbtained in laying shingles according to the system of Fig. 3 but with head and side lap according to Fig. 2, except that thestem and the cross piece of the T will both be materially thicker. A

When laid according to Fig. '2, the shingles cover as much area as possible with a singlethickness of material only. Roofing according to Fig. 2is generally suitable on old roofs previously covered with shingles or otherwise, and is commonly referred to herein and in the trade 'as a single thickness roof. When laid'according to Fi 3, the root has no areacovere by less thicknesses 'of material. Such a roof is referred-to herein and in the trade as a double thickness roof and is suitable for new construction.

Shingles according to the invention, 21 inches high and having an average width of secure dur- 14 inches, require 144 square feet of material per square feet of roof surface, when laid according to Fig. 2 i and 244 square feet when laid according to F1 3.

' However, such large shingles are unsightly and difficult to sell, and the large area puts too heavy a load on the fastenings and the material. I prefer to make mi shingle 16 inches high with an average widt of 12 inches. In this size it requires 160 square feet for 100 square feet of single thickness roof according to Fi 2; and 253 rquare feet for the double thic ess roof of lv'ithout further elaboration, the foregoing will so full explain my invention, that others may, y applying current knowledge, readily adapt conditions of service.

I claim:

1. A flexible shin le of generally rectangu lar shape dened by vertical side portions each offset by a single horizontal shoulder at mid-height of the shingle to form a broad and narrow portion, and locking tabs at the endcorners of the narrow portion, the vertical height of the tabs at their butts b suicient to produce the proper verticaledri overlap in asingle thickness roof when the shingles are laid wide spaced in interlocked relationship with the broad portions uppermost, the sides of the shingle being complemental when reversed end vfor end and laid side by -side on the parent sheet for cutting without waste, the width of the shoulder being not more than one-sixth of the average width of the shingle.

2. A flexible shingle of generall rectangular sha e defined by `vertical. si e portions each o set by a single horizontal shoulder at mid-height of the shingle to form a broad and a narrow portion, and locking tabs at the end corners of the narrow portion, the vertical height of the tabs at their butts being suiicient to produce the proper vertical v end overlap in a single thickness roof when the shingles are laid wide s aced in interlocked relationship with the road portions uppermost, the sides of the shingle being complemental when reversed end for end and laid side by side on the parent sheet for cutting without waste, the width of the shoulder being not more than one-Sixth of the average width of the shingle, whereby a continuous side edge overlap may be attained when laid in a two thickness roof with the broad portions lowermost.

In testimony whereof, I have signed my name to this specification.

HERBERT G. GOSLIN.

the same for use under various 

